Hat clip



FIG. 1 is a front perspective view of a hat clip, showing my new design;

FIG. 2 is front view thereof;

FIG. 3 is a back view thereof,

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a right side view thereof. 

I claim the ornamental design for a hat clip, as shown and described. 